Lattice QCD Equation of State at Finite Chemical Potential from an Alternative Expansion Scheme

被引：99

作者：

Borsanyi, S. ^{[1
]}

Fodor, Z. ^{[1
,2
,3
,4
]}

Guenther, J. N. ^{[5
]}

Kara, R. ^{[1
]}

Katz, S. D. ^{[6
]}

Parotto, P. ^{[1
]}

Pasztor, A. ^{[6
]}

Ratti, C. ^{[7
]}

Szabo, K. K. ^{[1
,4
]}

机构：

[1] Univ Wuppertal, Dept Phys, D-42119 Wuppertal, Germany

[2] Penn State Univ, Dept Phys, State Coll, PA 16801 USA

[3] Eotvos Lorand Univ, Inst Theoret Phys, Pazmany Peter Setany 1-A, H-1117 Budapest, Hungary

[4] Forschungszentrum Julich, Julich Supercomp Ctr, D-52425 Julich, Germany

[5] Aix Marseille Univ, Univ Toulon, CPT, CNRS, Marseille, France

[6] Eotvos Lorand Univ, H-1117 Budapest, Hungary

[7] Univ Houston, Dept Phys, Houston, TX 77204 USA

来源：

PHYSICAL REVIEW LETTERS | 2021年 / 126卷 / 23期

基金：

美国国家科学基金会;

关键词：

PHASE-DIAGRAM; TRANSITION;

D O I：

10.1103/PhysRevLett.126.232001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In this Letter, we introduce a novel scheme for extrapolating the equation of state of QCD to finite chemical potential that features considerably improved convergence properties and allows us to extend its reach to unprecedentedly high baryonic chemical potentials. We present continuum extrapolated lattice results for the new expansion coefficients and show the thermodynamic observables up to mu(B)/T <= 3.5. This novel expansion does not suffer from the shortcomings that characterize the traditional Taylor expansion method, such as difficulties inherent in performing such an expansion with a limited number of coefficients and the poor signal-to-noise ratio that affects Taylor coefficients determined from lattice calculations.

引用

页数：7

共 59 条

[1] Stability of complex Langevin dynamics in effective models [J].

Aarts, Gert ;

James, Frank A. ;

Pawlowski, Jan M. ;

Seiler, Erhard ;

Sexty, Denes ;

Stamatescu, Ion-Olimpiu .

JOURNAL OF HIGH ENERGY PHYSICS, 2013, (03)

[2] Monte Carlo algorithm for simulating fermions on Lefschetz thimbles [J].

Alexandru, Andrei ;

Basar, Goekce ;

Bedaque, Paulo .

PHYSICAL REVIEW D, 2016, 93 (01)

[3] Thermodynamics of two flavor QCD to sixth order in quark chemical potential -: art. no. 054508 [J].

Allton, CR ;

Döring, M ;

Ejiri, S ;

Hands, SJ ;

Kaczmarek, O ;

Karsch, F ;

Laermann, E ;

Redlich, K .

PHYSICAL REVIEW D, 2005, 71 (05) :1-20

[4] QCD thermal phase transition in the presence of a small chemical potential [J].

Allton, CR ;

Ejiri, S ;

Hands, SJ ;

Kaczmarek, O ;

Karsch, F ;

Laermann, E ;

Schmidt, C ;

Scorzato, L .

PHYSICAL REVIEW D, 2002, 66 (07)

[5]

[Anonymous], NTR, DOI [10.1103/PhysRevLett.126.232001, DOI 10.1103/PHYSREVLETT.126.232001]

[6] The order of the quantum chromodynamics transition predicted by the standard model of particle physics [J].

Aoki, Y. ;

Endrodi, G. ;

Fodor, Z. ;

Katz, S. D. ;

Szabo, K. K. .

NATURE, 2006, 443 (7112) :675-678

[7] Skewness, kurtosis, and the fifth and sixth order cumulants of net baryon-number distributions from lattice QCD confront high-statistics STAR data [J].

Bazavov, A. ;

Bollweg, D. ;

Ding, H-T ;

Enns, P. ;

Goswami, J. ;

Hegde, P. ;

Kaczmarek, O. ;

Karsch, F. ;

Larsen, R. ;

Mukherjee, Swagato ;

Ohno, H. ;

Petreczky, P. ;

Schmidt, C. ;

Sharma, S. ;

Steinbrecher, P. .

PHYSICAL REVIEW D, 2020, 101 (07)

[8] Chiral crossover in QCD at zero and non-zero chemical potentials HotQCD Collaboration [J].

Bazavov, A. ;

Ding, H-T ;

Hegde, R. ;

Kaczmarek, O. ;

Karsch, F. ;

Karthik, N. ;

Laermann, E. ;

Lahiri, Anirban ;

Larsen, R. ;

Li, S-T ;

Mukherjee, Swagato ;

Ohno, H. ;

Petreczky, R. ;

Sandmeyer, H. ;

Schmidt, C. ;

Sharma, S. ;

Steinbrecher, R. .

PHYSICS LETTERS B, 2019, 795 :15-21

[9] QCD equation of state to O(μB6) from lattice QCD [J].

Bazavov, A. ;

Ding, H. -T. ;

Hegde, P. ;

Kaczmarek, O. ;

Karsch, F. ;

Laermann, E. ;

Maezawa, Y. ;

Mukherjee, Swagato ;

Ohno, H. ;

Petreczky, P. ;

Sandmeyer, H. ;

Steinbrecher, P. ;

Schmidt, C. ;

Sharma, S. ;

Soeldner, W. ;

Wagner, M. .

PHYSICAL REVIEW D, 2017, 95 (05)

[10] Equation of state in (2+1)-flavor QCD [J].

Bazavov, A. ;

Bhattacharya, Tanmoy ;

DeTar, C. ;

Ding, H. -T. ;

Gottlieb, Steven ;

Gupta, Rajan ;

Hegde, P. ;

Heller, U. M. ;

Karsch, F. ;

Laermann, E. ;

Levkova, L. ;

Mukherjee, Swagato ;

Petreczky, P. ;

Schmidt, C. ;

Schroeder, C. ;

Soltz, R. A. ;

Soeldner, W. ;

Sugar, R. ;

Wagner, M. ;

Vranas, P. .

PHYSICAL REVIEW D, 2014, 90 (09)

← 1 2 3 4 5 6 →